US20170336072A1 - Modular flue adapter system and method - Google Patents
Modular flue adapter system and method Download PDFInfo
- Publication number
- US20170336072A1 US20170336072A1 US15/444,788 US201715444788A US2017336072A1 US 20170336072 A1 US20170336072 A1 US 20170336072A1 US 201715444788 A US201715444788 A US 201715444788A US 2017336072 A1 US2017336072 A1 US 2017336072A1
- Authority
- US
- United States
- Prior art keywords
- firebox
- exhaust
- modular device
- flue
- offset distance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
- F23J13/04—Joints; Connections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
- F23J13/06—Mouths; Inlet holes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B1/00—Stoves or ranges
- F24B1/18—Stoves with open fires, e.g. fireplaces
- F24B1/1806—Mounting of closed stoves in a fireplace
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B13/00—Details solely applicable to stoves or ranges burning solid fuels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C1/00—Stoves or ranges in which the fuel or energy supply is not restricted to solid fuel or to a type covered by a single one of the following groups F24C3/00 - F24C9/00; Stoves or ranges in which the type of fuel or energy supply is not specified
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2213/00—Chimneys or flues
- F23J2213/20—Joints; Connections
- F23J2213/203—Joints; Connections between stack/duct and combustion apparatus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
Definitions
- the present invention relates to firebox flue adapters. More particularly, the present invention relates to a modular flue system and method for adapting the exhaust of a firebox to a preexisting firebox flue.
- the preexisting firebox flue is used as the exhaust for connection to the exhaust of the new firebox unit.
- the preexisting flue is used for convenience to alleviate the need to re-route a new exhaust.
- Modern fireboxes typically come equipped with the exhaust positioned at or towards the rear of the unit.
- the consumer prefers that the firebox, when installed into the firebox opening, occupy as much of the opening as possible so that the appearance is aesthetically appealing and the unit is perceived to be an integral part of the opening. For example, it would be unappealing to have large or uneven gaps around the new unit, between it and the firebox opening.
- one consequence of achieving this close fit by the updated firebox into the opening is that it is often difficult for the installer to accomplish a secure tight fit between the exhaust of the unit, which is at the rear of the unit, and the preexisting firebox flue.
- an inefficient seal and/or faulty connection can occur. This consideration is especially significant in terms of heating, cooling and general energy efficiency because of ever increasing energy consumption and costs. An inefficient seal and/or faulty connection also presents significant safety concerns.
- a modular flue adapter system and method can accommodate a conduit for exhaust between a firebox unit and a preexisting firebox flue by providing an offset distance and/or direction between the exhaust of the firebox and the firebox flue.
- the modular flue adapter comprises one or more of an exhaust flow cavity, an exhaust fan, an exhaust backflow prevention device, a flue closure device (e.g., a damper), and a device to deter mammals, birds and/or insects.
- FIG. 1A illustrates an exemplary embodiment of the present invention showing a perspective view of the front, top, and one side of a firebox unit comprising a standard sized flue adapter;
- FIG. 1B illustrates an exemplary embodiment of the present invention showing a perspective view of the rear, top, and one side of a firebox unit comprising a standard sized flue adapter;
- FIG. 2A illustrates an exemplary embodiment of the present invention showing a perspective view of the front, top, and one side of a firebox unit comprising an offset flue adapter of the present invention
- FIG. 2B illustrates an exemplary embodiment of the present invention showing a perspective view of the rear, top, and one side of a firebox unit comprising an offset flue adapter of the present invention
- FIG. 2C illustrates an exemplary embodiment of the present invention showing a perspective view of a firebox with an offset flue adapter apart from its assembled position within the firebox unit;
- FIG. 3A illustrates an exemplary embodiment of the present invention showing a cutaway view of a firebox and an offset flue adapter apart from its assembled position within the firebox unit;
- FIG. 3B illustrates an exemplary embodiment of the present invention showing a cutaway view of a firebox and an offset flue adapter in its assembled position within the firebox unit;
- FIG. 4A illustrates an exemplary embodiment of the present invention showing a cutaway view of a firebox comprising a standard flue adapter
- FIG. 4B illustrates an exemplary embodiment of the present invention showing a cutaway view of a firebox comprising an offset flue adapter
- FIG. 5A illustrates an exemplary embodiment of the present invention showing an offset flue adapter connected to the preexisting flue before insertion of the firebox;
- FIG. 5B illustrates an exemplary embodiment of the present invention showing an offset flue adapter connected to the preexisting flue and the inserted firebox.
- the present invention may be described herein in terms of various functional components. It should be appreciated that such functional components may be realized by any number of hardware components, electrical, mechanical, gravitational, magnetic, and the like configured to perform the specified functions.
- the present invention may be practiced in any number of firebox and/or heating system contexts and the firebox systems and methods described herein are merely exemplary applications of the invention.
- the present invention may employ any number of conventional techniques for adapting the exhaust from a firebox to a flue, and such general techniques that may be known to those skilled in the art are not described in detail herein.
- a modular flue adapter system and method can provide for the connection between a new firebox exhaust and a preexisting flue in a manner that provides for a secure and effective seal.
- a flue adapter in accordance with an exemplary embodiment can accommodate an offset distance between the exhaust of the new firebox and the preexisting flue.
- a modular flue adapter system comprises a firebox, a firebox flue, and a modular device comprising a first portion connected to the firebox and a second portion configured to provide the conduit for exhaust between the firebox and the firebox flue. For example, by accommodating an offset distance between the firebox exhaust and the preexisting flue, a close fit of the updated firebox into the firebox opening can be achieved.
- an exemplary modular flue adapter system comprises a firebox 100 , a modular device 110 , and a firebox flue (not illustrated).
- FIGS. 2A, 2B and 2C illustrate firebox 200 and modular device 210 .
- Firebox 100 may take on any number of permutations and maintain the spirit of the invention described herein.
- “Firebox”, as used in the description of the present invention, may be any object now known or later contemplated having an exhaust.
- such permutations may include any original or updated fireplace, stove, insert, dryer or heater, whether it burns gaseous fuel (e.g., natural gas, propane, etc.) or solid fuel (e.g, wood, coal, etc.), and whether it be a standalone object or an object to be inserted into a firebox opening.
- gaseous fuel e.g., natural gas, propane, etc.
- solid fuel e.g, wood, coal, etc.
- the firebox flue may be any preexisting or updated exhaust outlet.
- firebox 100 comprises one or more of a receiving portion 215 and an exhaust output 205 , which in turn may optionally comprise an exhaust output passageway 235 ( 335 in FIG. 3A ).
- a modular flue adapter system comprises firebox 300 and modular device 310 .
- Modular device 310 further comprises first portion 330 connected to firebox 300 and second portion 320 configured to provide the conduit for exhaust between firebox 300 and the firebox flue.
- First portion 330 may optionally comprise an elongated substantially planar portion 325 ( 225 in FIG. 2C ).
- second portion 320 comprises a bottom member 321 which is configured to provide an offset distance. Bottom member 321 is operatively coupled to two side members 322 along the width of bottom member 321 .
- Bottom member 321 and each side member 322 are coupled to a back member 323 .
- bottom member 321 and each side member 322 are coupled to an adapter plate 324 , such that the second portion provides an offset as a function of the width of bottom member 321 and defines an exhaust flow cavity 340 .
- Adapter plate 324 is configured to be removably coupled to a firebox mounting plate 336 .
- second portion 320 comprises firebox flue connector 350 , which is coupled to first portion 330 and to each of two side members 322 , back member 323 and adapter plate 324 further defining exhaust flow cavity 340 .
- exhaust flow cavity 340 is in fluid communication with an offset chimney, where the offset is provided by modular device 310 and chimney is coupled to modular device 310 at firebox flue connector 350 .
- Exhaust flow cavity 340 may optionally comprise an exhaust flow cavity passageway 345 .
- exhaust flow cavity passageway 345 and exhaust output passageway 335 provide a conduit for exhaust between the exhaust output of firebox 300 and second portion 320 .
- modular device 310 may have a unitary construction or comprise multiple pieces. Moreover, modular device 310 may comprise the same or different materials (e.g., the same or different alloys).
- Modular device 310 may provide the conduit for exhaust between firebox 300 and the firebox flue on the top of the firebox (as illustrated), the bottom, or any side thereof.
- first portion 330 may connect to firebox 300 on a side different from the side on which second portion 320 provides the conduit for exhaust.
- FIGS. 4A and 4B depict a detailed example of various physical embodiments of the present invention comprising firebox 400 and modular device 410 .
- First portion 430 of modular device 410 may or may not provide an offset distance between firebox 400 and the firebox flue.
- FIG. 4A illustrates a modular flue adapter system not having an offset distance
- FIG. 4B illustrates modular flue adapter system having an offset distance. That being said, and returning briefly to figures discussed earlier, FIGS. 1A and 1B illustrate a modular flue adapter system not having an offset distance while FIGS. 2A, 2B and 2C illustrate the modular flue adapter system having an offset distance.
- first portion 430 may be plus or minus ( ⁇ ) 2.5 in, 3 in, 3.5 in, 4 in, 4.5 in, 5 in, 5.5 in, 6 in, 6.5 in or any other distance suitable for aligning firebox 400 with the firebox flue.
- first portion 430 is further suited to provide an offset distance in any direction within a three dimensional coordinate system.
- such directions may include left, right, forward, backward, up, down, diagonal or any combination thereof
- an offset distance and/or direction is accommodated by altering the physical proportions of first portion 430 (e.g., shape, thickness, length, width). In this manner, the installer selects a preconfigured modular device having the appropriate offset.
- first portion 430 of modular device 410 can provide an offset distance and/or direction between firebox 400 and the firebox flue in any number of ways within the scope of the invention described herein.
- the elongated substantially planar portion of first portion 430 is adjustably coupled to the receiving portion of firebox 400 .
- an offset distance and/or direction may be accommodated by incorporating an extending, telescoping or sliding feature into first portion 430 , or adjustably connecting first portion 430 to firebox 400 via bolts or the like through two or more holes or an open channel wherein the bolt may tighten in any hole or anywhere along the channel. In this manner, the installer selects the appropriate offset from an adjustable modular device.
- first portion 430 providing an offset distance and/or direction for the sake of brevity
- second portion 420 may contribute or provide an offset distance and/or direction in substantially the same manner as first portion 430 .
- first portion 430 of modular device 410 can connect to firebox 400 in any number of ways and maintain the spirit of the invention described herein.
- the components may be coupled to each other via bolts, screws, dowels, welding, soldering, brazing, sleeves, brackets, clips, magnetism, or other means known in the art or hereinafter developed.
- the coupling may be permanent or temporary, and the coupling may include an adjustable coupling, thereby allowing the components to be extended away from each other or closer to each other.
- second portion 420 of modular device 410 acts as a conduit for exhaust between firebox 400 and the firebox flue.
- the cross section of second portion 420 may be a circle, square, rectangle, triangle, oval, ellipse or any other shape suitable for connecting to the firebox flue.
- Modular device 410 may optionally comprise an exhaust flow cavity 440 .
- modular device 410 also incorporates one or more of an exhaust fan, an exhaust backflow prevention device, a flue closure device (e.g., a damper), and a device to deter mammals, birds and/or insects.
- second portion 420 of modular device 410 can connect to the firebox flue in any number of ways, all within the scope of the invention as contemplated and described herein.
- second portion 420 is connected to the firebox flue via two or more bolts or the like.
- the cross sectional area of second portion 420 is just smaller than the cross sectional area of the firebox flue such that the flue overlaps second portion 420 to minimize the escape of exhaust rising from firebox 400 to the flue.
- Alternative methods are contemplated by the present invention to minimize the escape of exhaust rising from firebox 400 to the flue.
- a high temperature resistant rubber or composite seal may be used.
- any method to securely and effectively seal second portion 420 and the firebox flue known in the art or hereinafter developed is within the spirit and scope of the invention described herein.
- a modular flue adapter method contemplated by the invention comprises providing firebox 500 , modular device 510 , firebox flue 580 , and optionally, firebox opening 570 .
- FIG. 5A illustrates modular device 510 connected to firebox flue 580 and firebox 500 not inserted into optional firebox opening 570 .
- FIG. 5B illustrates modular device 510 connected to firebox 500 , firebox 500 being inserted into optional firebox opening 570 so as to provide a conduit for exhaust between firebox 500 and firebox flue 580 .
- the present invention sets forth a modular flue adapter system and method that is applicable to various heating system applications. It will be understood that the foregoing description is of exemplary embodiments of the invention, and that the invention is not limited to the specific forms shown. Various modifications may be made in the design and arrangement of the elements set forth herein without departing from the scope of the invention. For example, the location of components to match the heating system design, the different types of solid fuel applications, and the standalone aspect of the system and method can be suitably modified, adjusted, and/or re-configured. These and other changes or modifications are intended to be included within the scope of the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
- Incineration Of Waste (AREA)
- Chimneys And Flues (AREA)
Abstract
Description
- This application is a continuation of and claims the benefit of U.S. patent application Ser. No. 14/314,077 entitled MODULAR FLUE ADAPTER SYSTEM AND METHOD, filed Jun. 25, 2014, which is a continuation of U.S. patent application Ser. No. 12/853,950 entitled MODULAR FLUE ADAPTER SYSTEM AND METHOD, filed Aug. 10, 2010, which claims the benefit of U.S. patent application Ser. No. 12/044,468 entitled MODULAR FLUE ADAPTER SYSTEM AND METHOD, filed Mar. 7, 2008, which claims the benefit of U.S. Provisional Patent Application Ser. No. 60/894,083, entitled MODULAR FLUE ADAPTER SYSTEM AND METHOD, filed Mar. 9, 2007, all of which are incorporated by reference herein in their entirety.
- The present invention relates to firebox flue adapters. More particularly, the present invention relates to a modular flue system and method for adapting the exhaust of a firebox to a preexisting firebox flue.
- As part of general home remodeling or updating, one of the tasks regularly undertaken by homeowners is updating their firebox with a more modern firebox insert. The new firebox is inserted into the old firebox opening, and to accommodate the new firebox, the preexisting firebox flue is used as the exhaust for connection to the exhaust of the new firebox unit. The preexisting flue is used for convenience to alleviate the need to re-route a new exhaust.
- Modern fireboxes typically come equipped with the exhaust positioned at or towards the rear of the unit. As can be expected, the consumer prefers that the firebox, when installed into the firebox opening, occupy as much of the opening as possible so that the appearance is aesthetically appealing and the unit is perceived to be an integral part of the opening. For example, it would be unappealing to have large or uneven gaps around the new unit, between it and the firebox opening. However, one consequence of achieving this close fit by the updated firebox into the opening is that it is often difficult for the installer to accomplish a secure tight fit between the exhaust of the unit, which is at the rear of the unit, and the preexisting firebox flue. As a result, an inefficient seal and/or faulty connection can occur. This consideration is especially significant in terms of heating, cooling and general energy efficiency because of ever increasing energy consumption and costs. An inefficient seal and/or faulty connection also presents significant safety concerns.
- There is thus a need for a flue adapter to ease the connection from the new firebox exhaust to the preexisting flue in a manner that provides for a more secure and effective seal. Moreover, there is a need for a flue adapter that can accommodate an offset distance and/or direction between the exhaust of the new firebox and the preexisting flue.
- In accordance with various aspects of the present invention, a modular flue adapter system and method can accommodate a conduit for exhaust between a firebox unit and a preexisting firebox flue by providing an offset distance and/or direction between the exhaust of the firebox and the firebox flue. In various embodiments, the modular flue adapter comprises one or more of an exhaust flow cavity, an exhaust fan, an exhaust backflow prevention device, a flue closure device (e.g., a damper), and a device to deter mammals, birds and/or insects.
- The exemplary embodiments of the present invention will be described in conjunction with the appended drawing figures in which like numerals denote like elements and:
-
FIG. 1A illustrates an exemplary embodiment of the present invention showing a perspective view of the front, top, and one side of a firebox unit comprising a standard sized flue adapter; -
FIG. 1B illustrates an exemplary embodiment of the present invention showing a perspective view of the rear, top, and one side of a firebox unit comprising a standard sized flue adapter; -
FIG. 2A illustrates an exemplary embodiment of the present invention showing a perspective view of the front, top, and one side of a firebox unit comprising an offset flue adapter of the present invention; -
FIG. 2B illustrates an exemplary embodiment of the present invention showing a perspective view of the rear, top, and one side of a firebox unit comprising an offset flue adapter of the present invention; -
FIG. 2C illustrates an exemplary embodiment of the present invention showing a perspective view of a firebox with an offset flue adapter apart from its assembled position within the firebox unit; -
FIG. 3A illustrates an exemplary embodiment of the present invention showing a cutaway view of a firebox and an offset flue adapter apart from its assembled position within the firebox unit; -
FIG. 3B illustrates an exemplary embodiment of the present invention showing a cutaway view of a firebox and an offset flue adapter in its assembled position within the firebox unit; -
FIG. 4A illustrates an exemplary embodiment of the present invention showing a cutaway view of a firebox comprising a standard flue adapter; -
FIG. 4B illustrates an exemplary embodiment of the present invention showing a cutaway view of a firebox comprising an offset flue adapter; -
FIG. 5A illustrates an exemplary embodiment of the present invention showing an offset flue adapter connected to the preexisting flue before insertion of the firebox; and -
FIG. 5B illustrates an exemplary embodiment of the present invention showing an offset flue adapter connected to the preexisting flue and the inserted firebox. - The present invention may be described herein in terms of various functional components. It should be appreciated that such functional components may be realized by any number of hardware components, electrical, mechanical, gravitational, magnetic, and the like configured to perform the specified functions. In addition, the present invention may be practiced in any number of firebox and/or heating system contexts and the firebox systems and methods described herein are merely exemplary applications of the invention. Further, it should be noted that the present invention may employ any number of conventional techniques for adapting the exhaust from a firebox to a flue, and such general techniques that may be known to those skilled in the art are not described in detail herein.
- In accordance with various aspects of the present invention and described in greater detail below, a modular flue adapter system and method can provide for the connection between a new firebox exhaust and a preexisting flue in a manner that provides for a secure and effective seal. In addition, a flue adapter in accordance with an exemplary embodiment can accommodate an offset distance between the exhaust of the new firebox and the preexisting flue. In accordance with an exemplary embodiment, a modular flue adapter system comprises a firebox, a firebox flue, and a modular device comprising a first portion connected to the firebox and a second portion configured to provide the conduit for exhaust between the firebox and the firebox flue. For example, by accommodating an offset distance between the firebox exhaust and the preexisting flue, a close fit of the updated firebox into the firebox opening can be achieved.
- In accordance with an exemplary embodiment and with reference to
FIGS. 1A and 1B , an exemplary modular flue adapter system comprises a firebox 100, amodular device 110, and a firebox flue (not illustrated). Similarly,FIGS. 2A, 2B and 2C illustratefirebox 200 andmodular device 210. Firebox 100 may take on any number of permutations and maintain the spirit of the invention described herein. “Firebox”, as used in the description of the present invention, may be any object now known or later contemplated having an exhaust. By example, such permutations may include any original or updated fireplace, stove, insert, dryer or heater, whether it burns gaseous fuel (e.g., natural gas, propane, etc.) or solid fuel (e.g, wood, coal, etc.), and whether it be a standalone object or an object to be inserted into a firebox opening. In a similar manner, the firebox flue may be any preexisting or updated exhaust outlet. - In accordance with various exemplary embodiments, firebox 100 comprises one or more of a receiving
portion 215 and anexhaust output 205, which in turn may optionally comprise an exhaust output passageway 235 (335 inFIG. 3A ). - Continuing with a further exemplary embodiment of the present invention and referencing
FIGS. 3A and 3B , a modular flue adapter system comprisesfirebox 300 andmodular device 310.Modular device 310 further comprisesfirst portion 330 connected tofirebox 300 andsecond portion 320 configured to provide the conduit for exhaust betweenfirebox 300 and the firebox flue.First portion 330 may optionally comprise an elongated substantially planar portion 325 (225 inFIG. 2C ). In an exemplary embodiment and referring toFIG. 3A ,second portion 320 comprises abottom member 321 which is configured to provide an offset distance.Bottom member 321 is operatively coupled to twoside members 322 along the width ofbottom member 321.Bottom member 321 and eachside member 322 are coupled to aback member 323. Similarly,bottom member 321 and eachside member 322 are coupled to anadapter plate 324, such that the second portion provides an offset as a function of the width ofbottom member 321 and defines anexhaust flow cavity 340.Adapter plate 324 is configured to be removably coupled to a firebox mounting plate 336. Further,second portion 320 comprisesfirebox flue connector 350, which is coupled tofirst portion 330 and to each of twoside members 322,back member 323 andadapter plate 324 further definingexhaust flow cavity 340. As such,exhaust flow cavity 340 is in fluid communication with an offset chimney, where the offset is provided bymodular device 310 and chimney is coupled tomodular device 310 atfirebox flue connector 350.Exhaust flow cavity 340 may optionally comprise an exhaustflow cavity passageway 345. In accordance with various exemplary embodiments, exhaustflow cavity passageway 345 andexhaust output passageway 335 provide a conduit for exhaust between the exhaust output offirebox 300 andsecond portion 320. - Notwithstanding
modular device 310 havingfirst portion 330 andsecond portion 320,modular device 310 may have a unitary construction or comprise multiple pieces. Moreover,modular device 310 may comprise the same or different materials (e.g., the same or different alloys). -
Modular device 310 may provide the conduit for exhaust betweenfirebox 300 and the firebox flue on the top of the firebox (as illustrated), the bottom, or any side thereof. In that regard,first portion 330 may connect to firebox 300 on a side different from the side on whichsecond portion 320 provides the conduit for exhaust. - Now turn to
FIGS. 4A and 4B which depict a detailed example of various physical embodiments of the presentinvention comprising firebox 400 andmodular device 410.First portion 430 ofmodular device 410 may or may not provide an offset distance betweenfirebox 400 and the firebox flue.FIG. 4A illustrates a modular flue adapter system not having an offset distance, whileFIG. 4B illustrates modular flue adapter system having an offset distance. That being said, and returning briefly to figures discussed earlier,FIGS. 1A and 1B illustrate a modular flue adapter system not having an offset distance whileFIGS. 2A, 2B and 2C illustrate the modular flue adapter system having an offset distance. - The offset distance accommodated by
first portion 430 may be plus or minus (±) 2.5 in, 3 in, 3.5 in, 4 in, 4.5 in, 5 in, 5.5 in, 6 in, 6.5 in or any other distance suitable for aligningfirebox 400 with the firebox flue. In an exemplary embodiment,first portion 430 is further suited to provide an offset distance in any direction within a three dimensional coordinate system. By example, such directions may include left, right, forward, backward, up, down, diagonal or any combination thereof - In an exemplary embodiment, an offset distance and/or direction is accommodated by altering the physical proportions of first portion 430 (e.g., shape, thickness, length, width). In this manner, the installer selects a preconfigured modular device having the appropriate offset.
- However,
first portion 430 ofmodular device 410 can provide an offset distance and/or direction betweenfirebox 400 and the firebox flue in any number of ways within the scope of the invention described herein. In an exemplary embodiment, the elongated substantially planar portion offirst portion 430 is adjustably coupled to the receiving portion offirebox 400. By way of example, an offset distance and/or direction may be accommodated by incorporating an extending, telescoping or sliding feature intofirst portion 430, or adjustably connectingfirst portion 430 tofirebox 400 via bolts or the like through two or more holes or an open channel wherein the bolt may tighten in any hole or anywhere along the channel. In this manner, the installer selects the appropriate offset from an adjustable modular device. - While various exemplary modular flue adapter systems are illustrated and described herein in terms of
first portion 430 providing an offset distance and/or direction for the sake of brevity,second portion 420 may contribute or provide an offset distance and/or direction in substantially the same manner asfirst portion 430. - With continued attention to
FIGS. 4A and 4B ,first portion 430 ofmodular device 410 can connect tofirebox 400 in any number of ways and maintain the spirit of the invention described herein. The components may be coupled to each other via bolts, screws, dowels, welding, soldering, brazing, sleeves, brackets, clips, magnetism, or other means known in the art or hereinafter developed. The coupling may be permanent or temporary, and the coupling may include an adjustable coupling, thereby allowing the components to be extended away from each other or closer to each other. - With additional reference to
FIGS. 4A and 4B ,second portion 420 ofmodular device 410 acts as a conduit for exhaust betweenfirebox 400 and the firebox flue. The cross section ofsecond portion 420 may be a circle, square, rectangle, triangle, oval, ellipse or any other shape suitable for connecting to the firebox flue.Modular device 410 may optionally comprise anexhaust flow cavity 440. In various embodiments contemplated as being within the scope of the present invention,modular device 410 also incorporates one or more of an exhaust fan, an exhaust backflow prevention device, a flue closure device (e.g., a damper), and a device to deter mammals, birds and/or insects. - As above,
second portion 420 ofmodular device 410 can connect to the firebox flue in any number of ways, all within the scope of the invention as contemplated and described herein. In an exemplary embodiment,second portion 420 is connected to the firebox flue via two or more bolts or the like. In yet another exemplary embodiment, the cross sectional area ofsecond portion 420 is just smaller than the cross sectional area of the firebox flue such that the flue overlapssecond portion 420 to minimize the escape of exhaust rising fromfirebox 400 to the flue. Alternative methods are contemplated by the present invention to minimize the escape of exhaust rising fromfirebox 400 to the flue. By way of example, a high temperature resistant rubber or composite seal may be used. Generally, any method to securely and effectively sealsecond portion 420 and the firebox flue known in the art or hereinafter developed is within the spirit and scope of the invention described herein. - Turning finally to
FIGS. 5A and 5B , a modular flue adapter method contemplated by the invention comprises providingfirebox 500,modular device 510,firebox flue 580, and optionally,firebox opening 570.FIG. 5A illustratesmodular device 510 connected tofirebox flue 580 andfirebox 500 not inserted intooptional firebox opening 570.FIG. 5B illustratesmodular device 510 connected tofirebox 500,firebox 500 being inserted into optional firebox opening 570 so as to provide a conduit for exhaust betweenfirebox 500 andfirebox flue 580. - The present invention sets forth a modular flue adapter system and method that is applicable to various heating system applications. It will be understood that the foregoing description is of exemplary embodiments of the invention, and that the invention is not limited to the specific forms shown. Various modifications may be made in the design and arrangement of the elements set forth herein without departing from the scope of the invention. For example, the location of components to match the heating system design, the different types of solid fuel applications, and the standalone aspect of the system and method can be suitably modified, adjusted, and/or re-configured. These and other changes or modifications are intended to be included within the scope of the present invention.
Claims (17)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/444,788 US10883716B2 (en) | 2007-03-09 | 2017-02-28 | Modular flue adapter system and method |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US89408307P | 2007-03-09 | 2007-03-09 | |
US12/044,468 US7784458B2 (en) | 2007-03-09 | 2008-03-07 | Modular flue adapter system and method |
US12/853,950 US8794228B2 (en) | 2007-03-09 | 2010-08-10 | Modular flue adapter system and method |
US14/314,077 US9612014B2 (en) | 2007-03-09 | 2014-06-25 | Modular flue adapter system and method |
US15/444,788 US10883716B2 (en) | 2007-03-09 | 2017-02-28 | Modular flue adapter system and method |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/314,077 Continuation US9612014B2 (en) | 2007-03-09 | 2014-06-25 | Modular flue adapter system and method |
Publications (2)
Publication Number | Publication Date |
---|---|
US20170336072A1 true US20170336072A1 (en) | 2017-11-23 |
US10883716B2 US10883716B2 (en) | 2021-01-05 |
Family
ID=39740401
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/044,468 Active US7784458B2 (en) | 2007-03-09 | 2008-03-07 | Modular flue adapter system and method |
US12/853,950 Active 2029-02-18 US8794228B2 (en) | 2007-03-09 | 2010-08-10 | Modular flue adapter system and method |
US14/314,077 Active 2028-12-15 US9612014B2 (en) | 2007-03-09 | 2014-06-25 | Modular flue adapter system and method |
US15/444,788 Active 2030-04-23 US10883716B2 (en) | 2007-03-09 | 2017-02-28 | Modular flue adapter system and method |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/044,468 Active US7784458B2 (en) | 2007-03-09 | 2008-03-07 | Modular flue adapter system and method |
US12/853,950 Active 2029-02-18 US8794228B2 (en) | 2007-03-09 | 2010-08-10 | Modular flue adapter system and method |
US14/314,077 Active 2028-12-15 US9612014B2 (en) | 2007-03-09 | 2014-06-25 | Modular flue adapter system and method |
Country Status (1)
Country | Link |
---|---|
US (4) | US7784458B2 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7784458B2 (en) | 2007-03-09 | 2010-08-31 | Fpi Fireplace Products International Ltd. | Modular flue adapter system and method |
US9874352B2 (en) * | 2010-07-13 | 2018-01-23 | Innovative Hearth Products, Llc | Hood for emission control for fireplace |
USD796661S1 (en) * | 2013-03-01 | 2017-09-05 | Michael E. Oswald, Jr. | Vent cover with frame |
KR200477557Y1 (en) * | 2013-11-14 | 2015-06-23 | 김인욱 | Stove for Outdoors Use |
US9488375B2 (en) * | 2014-03-26 | 2016-11-08 | Emmanuel Marcakis | Adjustable circulating chamber for fire inserts |
EP3112760A1 (en) * | 2015-07-02 | 2017-01-04 | Electrolux Appliances Aktiebolag | Exhaust closure system for a cooking oven |
USD779650S1 (en) | 2015-08-07 | 2017-02-21 | A. O. Smith Corporation | Air inlet damper |
USD771791S1 (en) * | 2015-08-07 | 2016-11-15 | A. O. Smith Corporation | Air inlet damper |
USD771790S1 (en) * | 2015-08-07 | 2016-11-15 | A. O. Smith Corporation | Air inlet damper |
USD771789S1 (en) * | 2015-08-07 | 2016-11-15 | A. O. Smith Corporation | Air inlet damper |
USD771793S1 (en) * | 2015-08-07 | 2016-11-15 | A. O. Smith Corporation | Air inlet damper |
USD771792S1 (en) * | 2015-08-07 | 2016-11-15 | A. O. Smith Corporation | Air inlet damper |
USD771234S1 (en) * | 2015-08-07 | 2016-11-08 | A. O. Smith Corporation | Air inlet damper |
USD771233S1 (en) | 2015-08-07 | 2016-11-08 | A. O. Smith Corporation | Air inlet damper |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3196862A (en) * | 1962-02-26 | 1965-07-27 | Jenn Air Products Company Inc | Oven exhaust structure |
US3292524A (en) * | 1965-09-13 | 1966-12-20 | Gen Electric | Exhaust duct connection for ventilating hood |
US4230092A (en) * | 1978-04-17 | 1980-10-28 | Joseph Henriques | Method and apparatus for improvements in convective heating |
GB1599658A (en) * | 1978-05-26 | 1981-10-07 | Tubeguard Boilers Ltd | Hot water boilers |
US4898154A (en) * | 1988-10-03 | 1990-02-06 | Richison Industries Incorporated | Adjustable fitting for fireplace insert flue connection |
US4919109A (en) * | 1988-03-21 | 1990-04-24 | Riley M Orville | Pack kitchen with airtight stove and flue oven |
US4924850A (en) * | 1988-08-29 | 1990-05-15 | Rieger Heinz H | Method and adaptor for installing flue liner to a fireplace insert |
US6910478B2 (en) * | 2003-09-24 | 2005-06-28 | Monessen Hearth Systems Company | Direct-vent fireplace configurable for top venting or rear venting |
Family Cites Families (60)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2709999A (en) * | 1955-06-07 | nag el | ||
US258311A (en) * | 1882-05-23 | Stove attachment | ||
US1516169A (en) * | 1924-11-18 | A corpora | ||
US295981A (en) | 1884-04-01 | Cornet | ||
US2120211A (en) * | 1938-06-07 | Stovepipe coupling | ||
US831429A (en) * | 1906-01-08 | 1906-09-18 | Daniel H Harrington | Attachment for stovepipes. |
US925762A (en) * | 1907-11-14 | 1909-06-22 | Harry B Eager | Furnace-pipe fitting. |
US975703A (en) * | 1910-02-28 | 1910-11-15 | John J Mcdonald | Adjustable flue-receiver. |
US1273695A (en) * | 1916-08-14 | 1918-07-23 | Isaac Unsworth | Lining for the throats of fireplaces. |
US1278895A (en) * | 1917-11-08 | 1918-09-17 | John W Farley | Plate-thimble for pipes. |
US1935751A (en) * | 1931-08-19 | 1933-11-21 | Benjamin F Stuart | Fireplace heater |
US2044731A (en) | 1934-02-07 | 1936-06-16 | Grand Joseph M Le | Thermal insulation structure |
US2044761A (en) * | 1935-06-12 | 1936-06-23 | Cleveland Cooperative Stove Co | Adjustable flue for gas ranges |
US2086007A (en) * | 1936-03-26 | 1937-07-06 | Howe And Bassett Company Inc | Sheet metal boot |
GB1355055A (en) * | 1970-10-16 | 1974-05-30 | Kayanson Engs Ltd | Improvements in or relating to flue outlets for stoves and boilers |
US4026264A (en) * | 1974-05-08 | 1977-05-31 | Joseph Henriques | Portable fireplace heating unit |
US4019491A (en) * | 1975-04-07 | 1977-04-26 | Dirocco Nicholas | No down draft chimney throat |
US4153036A (en) * | 1976-07-08 | 1979-05-08 | Preway Inc. | Fireplace construction |
US4201186A (en) * | 1978-03-17 | 1980-05-06 | Paquin Patrick J | Solid-fuel burner |
US4383518A (en) * | 1979-04-18 | 1983-05-17 | Gabriel Beausoleil | Heating stove |
US4261325A (en) * | 1979-06-18 | 1981-04-14 | Midwest Stoves, Inc. | Airtight stove with dripless flue collar and cover plate assembly |
US4385518A (en) | 1981-04-01 | 1983-05-31 | Rickett Royal C | Road test simulator |
US4424794A (en) * | 1981-04-13 | 1984-01-10 | Vermont Castings, Inc. | Fireplace adapter |
US4646712A (en) * | 1983-11-28 | 1987-03-03 | Vermont Castings, Inc. | Solid fuel heating appliances |
US4582044A (en) * | 1984-01-19 | 1986-04-15 | Vermont Castings, Inc. | Clean burning exterior retrofit system for solid fuel heating appliances |
US4584986A (en) * | 1985-03-04 | 1986-04-29 | Cannata Joseph M | Positive interconnect system for fireplace inserts |
US4700687A (en) * | 1986-08-11 | 1987-10-20 | Minpro Supply, Incorporated | Prefabricated convertible fireplace |
US4683623A (en) * | 1986-10-14 | 1987-08-04 | Cannata Joseph M | Positive interconnect system |
US4875463A (en) * | 1989-05-09 | 1989-10-24 | Washington James O | Stove top adapter |
US5145217A (en) * | 1990-12-04 | 1992-09-08 | Builder's Pride, Inc. | Universal dryer duct and vent |
USD342782S (en) * | 1992-01-31 | 1993-12-28 | Builder's Best, Inc. | Duct close elbow |
USD342130S (en) * | 1992-01-31 | 1993-12-07 | Builder's Best, Inc. | Duct offset elbow |
CA2070072C (en) * | 1992-05-29 | 1996-05-07 | David G. Squires | Direct vent gas fireplace assembly |
US5257468A (en) * | 1992-09-14 | 1993-11-02 | Mario Lebrun | Automatic dryer air outlet hose quick-disconnect coupling |
US5299558A (en) * | 1992-09-16 | 1994-04-05 | Lothar Binzer | Modular fireplace insert |
US5392760A (en) * | 1992-09-30 | 1995-02-28 | Binzer; Lothar | Direct vent fireplace |
CA2082915C (en) * | 1992-11-13 | 1995-08-08 | Wolfgang Schroeter | Summer damper for fireplace |
CA2091040A1 (en) * | 1993-03-04 | 1994-09-05 | Phil Cobby | Draft hood |
US5421774A (en) * | 1993-04-06 | 1995-06-06 | Thomas & Betts Corporation | Exhaust vent adapter for use with multiple heating units |
US5503550A (en) * | 1993-07-30 | 1996-04-02 | Depalma; Thomas M. | Gas log fireplace system |
US5669374A (en) * | 1995-08-18 | 1997-09-23 | Gsw Inc. | Direct vent fireplace |
US5762062A (en) * | 1996-01-16 | 1998-06-09 | Hon Industries Inc. | Fireplace vent |
US5647340A (en) * | 1996-01-19 | 1997-07-15 | Heat-N-Glow | Convertible dual direct-vented fireplace |
US5653631A (en) * | 1996-05-03 | 1997-08-05 | Builder's Best Inc. | Infinitely adjustable offset vent connector |
US5645482A (en) * | 1996-08-30 | 1997-07-08 | Builder's Best Inc. | Close coupled contractible vent connector |
US5752500A (en) * | 1996-11-01 | 1998-05-19 | Lennox Industries Inc. | Draft hood locating device for combustion apparatus |
CA2262971C (en) * | 1998-03-18 | 2006-10-24 | Nemco, Inc. | Dryer vent elbow and method of assembly |
US6029655A (en) * | 1998-04-27 | 2000-02-29 | Hussong Manufacturing Co., Inc. | Modular gas fireplace insert |
US6295981B1 (en) * | 1999-01-13 | 2001-10-02 | Cfm Majestic Inc. | Fireplace with vertical or horizontal venting |
US6431611B1 (en) * | 1999-06-03 | 2002-08-13 | Builder's Best, Inc. | Two piece universal elbow |
US6463926B1 (en) * | 2000-06-09 | 2002-10-15 | American Hearth Systems, Inc. | Direct vent fireplace with baffled, directional exhaust and vent air column |
US7066170B1 (en) * | 2000-10-31 | 2006-06-27 | Travis Industries, Inc. | Apparatuses and methods for balancing combustion air and exhaust gas for use with a direct-vent heater appliance |
US6543437B1 (en) * | 2000-11-10 | 2003-04-08 | Cfm Corporation | Drafthood adapter assembly particularly for stoves and fireplaces |
US6578286B2 (en) * | 2001-02-12 | 2003-06-17 | Gene Seeley | Clothes dryer vent adapter |
US20050000510A1 (en) * | 2003-07-02 | 2005-01-06 | Holt Daniel Lee | Flue Attachment |
US20060025067A1 (en) * | 2003-12-24 | 2006-02-02 | Juergen Koessler | Vent apparatus |
US8166965B2 (en) * | 2005-06-16 | 2012-05-01 | Miles Industries, Ltd. | Fireplace insert |
USD552219S1 (en) * | 2006-05-16 | 2007-10-02 | Beutler Corporation | Downspout elbow coupling |
USD552221S1 (en) * | 2006-05-16 | 2007-10-02 | Beutler Corporation | Downspout side elbow coupling |
US7784458B2 (en) | 2007-03-09 | 2010-08-31 | Fpi Fireplace Products International Ltd. | Modular flue adapter system and method |
-
2008
- 2008-03-07 US US12/044,468 patent/US7784458B2/en active Active
-
2010
- 2010-08-10 US US12/853,950 patent/US8794228B2/en active Active
-
2014
- 2014-06-25 US US14/314,077 patent/US9612014B2/en active Active
-
2017
- 2017-02-28 US US15/444,788 patent/US10883716B2/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3196862A (en) * | 1962-02-26 | 1965-07-27 | Jenn Air Products Company Inc | Oven exhaust structure |
US3292524A (en) * | 1965-09-13 | 1966-12-20 | Gen Electric | Exhaust duct connection for ventilating hood |
US4230092A (en) * | 1978-04-17 | 1980-10-28 | Joseph Henriques | Method and apparatus for improvements in convective heating |
GB1599658A (en) * | 1978-05-26 | 1981-10-07 | Tubeguard Boilers Ltd | Hot water boilers |
US4919109A (en) * | 1988-03-21 | 1990-04-24 | Riley M Orville | Pack kitchen with airtight stove and flue oven |
US4924850A (en) * | 1988-08-29 | 1990-05-15 | Rieger Heinz H | Method and adaptor for installing flue liner to a fireplace insert |
US4898154A (en) * | 1988-10-03 | 1990-02-06 | Richison Industries Incorporated | Adjustable fitting for fireplace insert flue connection |
US6910478B2 (en) * | 2003-09-24 | 2005-06-28 | Monessen Hearth Systems Company | Direct-vent fireplace configurable for top venting or rear venting |
Also Published As
Publication number | Publication date |
---|---|
US10883716B2 (en) | 2021-01-05 |
US20140305421A1 (en) | 2014-10-16 |
US7784458B2 (en) | 2010-08-31 |
US20080216820A1 (en) | 2008-09-11 |
US9612014B2 (en) | 2017-04-04 |
US8794228B2 (en) | 2014-08-05 |
US20100319675A1 (en) | 2010-12-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10883716B2 (en) | Modular flue adapter system and method | |
CA2960420C (en) | Top ported burner | |
KR20120002124A (en) | Portable prefabricated stove | |
US20150076293A1 (en) | Gas Manifold Bracket for Gas Grill | |
US4683623A (en) | Positive interconnect system | |
US11162679B2 (en) | Quick-disconnect gas pipeline | |
US4924850A (en) | Method and adaptor for installing flue liner to a fireplace insert | |
US11141020B2 (en) | Tripodal cooking assembly | |
US7874287B1 (en) | Air intake apparatus | |
US20080223355A1 (en) | Baffle system for burn chamber of stove and method of installing and using same | |
KR101735639B1 (en) | Combustion tube for outdoor | |
TWI275755B (en) | Hot-water supplying machine | |
US5505191A (en) | Flush-mounted cabinet for free-standing fireboxes | |
US6029654A (en) | Vented fireplace construction | |
CN210267379U (en) | Gas stove capable of protecting air inlet hose | |
KR101834990B1 (en) | Front cover mounting structure of the boiler | |
US20190086095A1 (en) | Smokeless Safe Combustion Device | |
US20180306464A1 (en) | Combustion Air Blower with Embossed Housing | |
US9488375B2 (en) | Adjustable circulating chamber for fire inserts | |
KR102588129B1 (en) | Tent cover for preventing fire-flakes of stovepipe | |
US20060121841A1 (en) | Snap-tight chimney liner tee | |
FR3080910A1 (en) | DOSSIER SYSTEM FOR INSTALLATION OF A CONDENSING GAS BOILER | |
CA1281249C (en) | Method and adaptor for installing flue liner to fireplace insert | |
KR101867519B1 (en) | PCB Case for Wire Connection of Boiler | |
KR200202909Y1 (en) | Front panel assembling structure of gas boiler case |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STPP | Information on status: patent application and granting procedure in general |
Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS |
|
AS | Assignment |
Owner name: FPI FIREPLACE PRODUCTS INTERNATIONAL LTD., CANADA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:RICHTER, JEFFREY H.;LAU, GE H.K.;SIGNING DATES FROM 20080328 TO 20080401;REEL/FRAME:053701/0850 |
|
AS | Assignment |
Owner name: FPI FIREPLACE PRODUCTS INTERNATIONAL LTD., CANADA Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNOR NAME PREVIOUSLY RECORDED ON REEL 053701 FRAME 0850. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT;ASSIGNORS:RICHTER, JEFFREY H.;LAU, GEORGE H.K.;SIGNING DATES FROM 20080328 TO 20080401;REEL/FRAME:054641/0101 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FEPP | Fee payment procedure |
Free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FEPP | Fee payment procedure |
Free format text: PETITION RELATED TO MAINTENANCE FEES GRANTED (ORIGINAL EVENT CODE: PTGR); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |